[REF] Very minor code cleanup on import code with good test cover

[eileenmcnaughton]

Overview

Very minor code cleanup - removes a few lines of code from well-tested chunk of code

Before

More code

After

less code

Technical Details

The value is equal to the phone id if one exists or the processor id - this just
uses the processor function to grab it

Comments

[civibot]

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[seamuslee001]

Change looks fine and we have a good solid amount of tests here